Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Michael Leath, M. D.

Q: What is the NPI number for Thomas Leath?

The National Provider Identifier (NPI) for Thomas Leath is 1497767420, a Type 1 (individual) record in the CMS NPPES registry.

Allergy & Immunology Physician in Austin, TX · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1497767420

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Registry record

Entity type Individual (Type 1)

Name Thomas Michael Leath

Credential M. D.

Sex Male

Practice address 3410 Far West Blvd, Suite 146, Austin, TX, 78731

Phone (512) 349-0777

Fax (512) 349-9111

Enumeration date Aug 11, 2006

Last updated in NPPES Oct 31, 2023

Taxonomy & licenses

2080P0201X Pediatric Allergy/Immunology Physician Allopathic & Osteopathic Physicians · License M4273 (TX) Secondary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License M4273 (TX) Primary

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians · License M4273 (TX) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
752741	Other	TX	MEDICARE PTAN

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Thomas Leath?

The National Provider Identifier (NPI) for Thomas Leath is 1497767420, a Type 1 (individual) record in the CMS NPPES registry.

Where does Thomas Leath practice?

The practice location on file with NPPES is in Austin, TX. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Carla Coston General Practice Dentistry · Austin, TX NPI 1124027214 Allergy & Asthma Associates, P.L.L.C. Allergy Physician · Austin, TX NPI 1528031754 Julius Van Bavel Allergy Physician · Austin, TX NPI 1396718516 Kenneth White Sports Physician Chiropractor · Austin, TX NPI 1497715106 Jeanne Taylor General Practice Dentistry · Austin, TX NPI 1689608077 Melanie Prosise Optometrist · Austin, TX NPI 1801988316 Eye Clinic of Austin Pllc Thomas Henderson Sole Mbr Ophthalmology Physician · Austin, TX NPI 1053403543 Brad Singleton Pediatric Dentistry · Austin, TX NPI 1710076344

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-31.